From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph of road speed versus engine RPM, showing fluid flywheel slip for an 18 HP Lanchester car at full throttle.
| Identifier | ExFiles\Box 179\3\ img041 | |
| Date | 1st March 1932 | |
| 18 H.P. LANCHESTER CAR FLUID FLYWHEEL SLIP AT FULL THROTTLE ROAD SPEED (M.P.H.) ENGINE R.P.M. SLIP ACTUAL ENGINE R.P.M. TOP GEAR - DIRECT DRIVE (6.19) - 3457 R.P.M. @ 60 M.P.H. 1-3-32 | ||